Snow-plow.



W. LQSTADIG.

SNOW PLOW.

APPLICATION FILED APR. 10; 1913.

L93 93 Patented Apr. 14, 1914.

SHEETSSHEET 1.

' WITNESSES INVENTOR ATTORNEYS W. L. STADIG.

snow PLOW.

APPLICATION FILED APR.10, 1913. 1 93 493., Patented Apr. 14, 1914.

3 SHEETS-SHEET 2.

WITNESSES l/WEIV TO I? 7761232711. 624162 9 AVON/E78 W. L. STADIG.

SNOW PLOW.

APPLICATION FILED APRJO, 1913,

Patented Apr. 14, 1914.

3 SHEETS-SHEET 3.

WITNESSES ATTORNEYS WALTER LESLIE STADIG, OEST'. FRANCIS, MAINE.

' snow-21.0w

Specification of Letters Patent.

Patented Apr. 14, 1914.

Application filed April 10, 1913. Serial No. 760,173.

-- scription.

My invention relates to snow plows having a plow, and co-actin rotary means for taking up the snow an causing it to be .raised and deflected to the side of the road.

It is a design of .my invention to provide an improved apparatus of the indicated character adapted-for removing snow from highways, logging roads and the like.

It is furthermore a design of the invention to provide an improved means associated .with the rotary elements, and adapted lac-gather the snow to the latter, the said means being arranged for adjustment to remove the snow substantially to the road level, or to leave a comb in the center of the road.

It is also a design of my invention to pro vide for tiltingthe snow-removing means, to out into the snow lower at one side of the road than atthe other.

It is also a design of my invention to improve devices of the. indicated character to the end that efficiency in operation may be promoted, as well as economy in manufacturing and simplicity of adjustment and control.

The distinguishing features of my invention, and the important structural elements 7 characterizing the preferred embodiment which is illustrated as an example, will be -more particularly explained in the specific description hereinafter to be men.

Reference is to be had to t e accompany,

ing drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a side'elevation of a snow plow embodying my inventlon; Flg. 2 -IS a plan view thereof Fig. 3 is a rear end view; Fig. 4 is-a fragmentary longitudinal vertical section given principally to show the means for raising and lowering the operative elements' Fig.- 5 is a transverse sectional view of the rotary cutter; and Fig. 6 is a fragmentary perspective view' showing one of the arms or blades of the said cutter.

. claimed herein.

In constructing a snowplow in accord ance with the particular embodiment illustrated as an example, a main frame 10 is provided, and is supported by the fore sled .11 and the rear sled 12. The knee 13 of the fore sled desirably is connected with the frame 10 in practice, by ball and socket joint, of which the ball 14 is carried by a hanger frame 15 and suitably socketed in the top of the knee 13; the described conmotion of the fore sled however, is not The rear sled 12 desirably is mounted to rock forward and back on a suitable connection with the overhead frame 10. In the example shown, the knee 16 of the rear sled has eyebolts 17, and through these eyebolts and through similar eyebolts'l8 supported from the main frame 10, a transverse pin 19 passes, so that the sled may rock forward and back with the pin 19 as acenter.

In orderthat the overhead frame 10 may be tilted laterally on the sleds, the eyebolts 18 are secured to the under side of a bolster 20, which is pivoted to the said frame 10 by a horizontal pivot, the axis of which ranges lengthwise of the machine. The pivot connection may be effected inany suit able manner; in the form shown a pin 21 extends through the upright member 22 of a bracket 23 on-the bolster 20, and through a similar depending member 24 on a bracket 25 suitably bolted to the under side of a cross bar 10 of the frame 10.

To tilt the frame relatively to the bolster 20 and the rear sled, wire ropes 27 or any equivalent members are secured to the bolster 20, at each side thereof, by eye-bolts 28 or equivalent means, said ropes winding oppositely on a vertical drum or capstan 29 on an operating shaft 30, which is provided with a hand wheel 31 at the top adjacent to a seat 32 for the operator. Beneath the hand wheel 31, a circular crown rack 33 is supported on a suitable platform 34 provided on the frame 10, the supporting means the crown rack 33, to lock the parts in adjusted position. It will be obvious that by turning the hand wheel 31, the capstan 29 will Wll'ld in on one rope 27 and pay out the rope 27 at the opposite side so as to tilt the frame 10 laterally with the pm 21 as a center.

The snow-gathering, cutting and deflecting elements are supported on the frame between the fore and rear sleds, and 'comprise a vertical rocking suspension frame comprising side arms 37 arranged outside of the frame 10 a1'1d mounted to rock on a transverse shaft 38. On the lower ends of the arms 37 is journaled a transverse shaft or arbor 39, hereinafter termed a shaft, provided at each end with a rotary snow plow or cutter 40, hereinafter termed a cutter. On the arms 37 and shaft 39 of the suspension frame there is a shear or housing 41 in the form of a hood opening laterally at the outside, provided at, each side of the machine in connection with the cutters 40, each shear having an outward flare, as best seen in Figs. 2 and 3, which deflect-outward to the side of the road the snow thrown up by the cutters 40. Desirably in connection with the shears or housings 41, wing extensions 42, 42 are hinged at the outer edge of the shears at the top, as at 43, 43*, which may have any serviceable expedient provided, for holding the said extensions in adjusted position. In the example shown the 'means consists of an arm 44 on the side arms 37 of the suspension frame, a vertica bracket or depending link 45 on the outer end of the arm 44 and connected thereto by a slot and pin connection 46, 47. The connection between the link 45 and the wing extensions 42, 42*, may be effected in any suitable manner, as by slotted lugs 48 on said extensions and a pm 49 on the link 45. The pin 47 serves to fasten the slotted link 45 at different heightson the arm 44, according to the position of the wing extensions 42, 42*. The arrangement of the shears and the described wing extensions enables the operator to provide such an adjustment as will not cause the snow to be thrown too far to the side.

The plow 50 is arranged in front of the cutters 40, the wings 51 diverging rearwardly to points in line with the inner side of the shears 41 to deflect the snow to the cutters 40. The plow, as best seen in Fig. 4, is supported on arms 52 secured to the forward lower ends of the arms 37 b bolts 53 or the like, the arms being secured y a pivot bolt 54 to the respective wings 51 of the 1plow. There may be provided a second bolt ole 55 at a higher point on the wings 51,

whereby the bolt 54 ma be withdrawn from the position'shown in ig. 4, and the plow dropped sufficiently to have the bolt pass through the upper. hole 55, whereby to pivotally secure thewings 51 in a lower os1- by any suitable means, desirably by means of a link 56, having an eye 57 through which a bolt 58 passes, the bolt passing also through lugs 59 on the plow 50, at the apex thereof. The upper end of the link is connected to an eye-bolt 60 which passes through a suitable cross bar 10 on the frame 10, said bolt having lock nuts 61, 62,the arrangement being such that by adjusting the said nuts the plow 50 may be raised or lowered to level it according to the position of the bolt relative to the arms 52.

In order to raise or lower the snow-removing unit comprising the snow plow, cutters and shears, and the arms 37 and appurtenances, a rope, chain or equivalent 63 is connected to the suspension frame, as at 64, and

passes over an overhead sheave 65 on the frame 10, and thence re'arwardly toa vertical drum or capstan. 66, the spindle 67 of which is provided with athand wheel 68 in connection with a crown rack 69, and a locking pin 70 are provided, asdescribed in connection with the capstan 29.

The cutters 40 are motor-driven from any suitable motor 70, the motor being conventionally shown. A direct drive shaft 71 from the motor is suitably geared to the driven shaft 38, as by beveled pinions 72, 73,

and the driving connection from the shaft 38 to the cutter shaft 39 may be by meansof a sprocket wheel 74, on the shaft 38, a sprocket pinion 75 on the cutter shaft.39, and a sprocket chain 76 running over said sprockets. The cutter 40 is preferabl in the form shown more 4, 5, and 6, in order t at it may have the necessary action to cut the snow as fast as it is \received from the the snow to bedeflected rom the outer ends of the arms of the cutter and thrown out wardly against the deflecting shears 41. Thus the cutter comprises ya head, suitably fastenedtothe shaft 39 and comprising a plurality of arms 40, four in the present instance.

Each arm preferably-isin the form .of a broad plate, and separate knives are let into particularly in igs.-

low 50, and cause the plate at the side edges and at thefron-t edge, for which purpose the solid center of the plate of each arm is of greatrlthickw ness than the edge portions, the latter-being of reduced thickness as at 40", which may be considered a flangeythereby producing a shoulder 40, which extends at three sides of the plate. 'On each reduced side portion is seated the flange 4090f the knife 40,

noaaaea the front reduced edge 40*, and to lie against the front shoulder 40 flush with the central raised portion or body of the plateythe outer edge of the knife projecting beyond the cutter head and'conforming to the gen eral incurveof the flange 40". The side knives are bolted or otherwise secured to the front knife, for which purpose an end of one knife has a lug bent to overlie the adjacent end of an adjacent ,knife. Thus in the form shown, the front knife 40 is formed with a lug 40 at each end, at approximately right angles to the knife to overlie the adjacent end of each side knife 40",

and be secured thereto as by a bolt 40, or its equivalent. With the described construction the rapidly revolving cutter will .cut the snow delivered by the plow 50 and freely discharge it from the outer end of each of the cutter blades against the shears. v

In practice the? cutter may revolve in the direction of the arrow (Fig. 1) or in the opposite direction; in either case the concave curve of the knives will face the direction of rotation, so that if the rotation be reversed, the cutter head mustbe removed from its shaft or arbor 39, and reversed end to end. When the cutter is revolved in the direction of the arrow (Fig, 1) it has the advantage that it will assist in the propulsion of the apparatus.

The apparatus may be drawn by draft animals or by a tractor; in the drawings I have illustrated a drivers seat at 80.

I wish to state in conclusion that although the illustrated example constitutes a practical embodiment of my invention, I do not limit myself strictly to the mechanical details herein illustrated, since manifestly the same can be considerably varied without departure from the spirit of the invention.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. A snow plow having a driven rotary cutter mounted on a horizontal axis and provided with radial curved blades, the blades carrying side knives, and a front knife, and a flaring shear in the form of a hood extending over and behind the cutters, and

the said cutter serving to raise the snow and discharge the same by centrifugal force against the inner surface of the said shear.

52. In a snow plow, driven rotary cutters turning on a laterally extending horizontal axis, the cutter having radial blades each provided with knives at opposite side edges approximately perpendicular to the plane of the blade, and a front knife extending transversely between the side knives approximately parallel with the axis of the cutter, in combination with a hood extending over and behind the rotary cutter and opening at the outside.

'3. In a snow plow, the combination of an elevated frame, a suspension frame mounted on the main frame for rocking movement on the latter, and a snowremoving unit comprising a plow having diverging wings, driven rotary cutters turning on a laterally disposed horizontal axis at the rear of the plow and outside the wings of the latter, and hoods extending in flaring form continuously over and behind the cutters and opening at the outside, the hoods being disposed in the general direction of the axis of the rotation of the cutters and the flare being with respect to the said axis of rotation.

4. In a snow plow, the combination of a supporting main frame, a snow-removing unit comprising a suspension frame, driven rotary cutters turning on a horizontal axis on the suspension frame, a flaring hood opening at the outside and extending over and behind the cutters, aplow having diverging wings, arms on the suspension frame, means for rockably supporting the plow on said arms at different heights, and connecting means between the first-mentioned frame and the apex of the plow for raising and lowering the apex to suit the adjustment between the wings of the plow and the mentioned arms.

5. In a snow plow, the combination of front and rear sleds, an overhead frame mounted to tilt glaterally on said sleds, a snow-removing unit having support from said frame and comprising driven rotary cuttersat the sides of the main frame, a snow plow in front of the cutters and having diverging wings leading to the latter, and connections between the main frame and one of the sleds serving to tilt the main frame and with it the snow-removing unit relatively to the sleds to cause the cutters at one side to cut deeper than the cutters at the opposite side.

In testimony whereof I have signed my name to'this specification in the presence of two subscribing witnesses.

J'Vrtllllhlld LESLIE STADIG. lVitnesses Itarmonrrr EDWIN STADIG, rtnrnoxsn STADIG. 

